Apple has officially announced iPhone 6s on September 9. While there are no external changes, iPhone 6s specs show a huge boost to its hardware over its predecessor. Some of the key iPhone 6s specification include an all new pressure sensitive 3D Touch technology built into the display, an all-new A9 chip, huge boost to the capabilities of its camera with a 12MP sensor and 4K video recording. Below you will find detailed phone specifications of Apple iPhone 6s.